Di-alkyl chain surfactants as a main surfactant for enhancing oil recovery for tight oil formations
US-12565618-B2 · Mar 3, 2026 · US
This page is not indexed by search engines while we improve data quality.
Zhou Nancy Chun patents
Zhou Nancy Chun is listed as an inventor on 5 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Zhou Nancy Chun |
| Total patents | 5 |
| First publication | Sep 23, 2021 |
| Latest publication | Mar 3, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Di-Alkyl Chain Surfactants as a Main Surfactant for Enhancing Oil Recovery for Tight Oil Formations
US-2023295515-A1 · Sep 21, 2023 · US
Nonionic surfactants employed with extended chain as the oil displacement agent to use in enhanced oil recovery
US-11649395-B2 · May 16, 2023 · US
Nonionic Surfactants Employed with Extended Chain as the Oil Displacement Agent to use in Enhanced Oil Recovery
US-2023046909-A1 · Feb 16, 2023 · US
Nonionic Surfactants Employed with Extended Chain as the Oil Displacement Agent to use in Enhanced Oil Recovery
US-2021292636-A1 · Sep 23, 2021 · US
Recent patents
Latest publications not already listed above.
No data yet.
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Cnpc Usa Corp | 5 |
| Beijing Huamei Inc | 4 |
| China Nat Petroleum Corp | 3 |
| Beijing Huamei Incorporated Cboc | 1 |
| Beijing Huamei Incorporated Cnpc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.